[cv65user]

hi i got hold of a pair of 25 led bulb 501 w5w wedge ones , one works , one other doesnt seem to work in the same passengers head lamp . can anyone advise me full proof way to test it make sure it works ?

obviously it has +/- but other than that how can you tell if its faulty as you cant s ee if the coil has broke on conventional bulbs?

 

[scoosh-89]

Using a test meter, put a test lead across each terminal on the bulb to check the resistance.

0.0 - 0.4ohms is usually fine.
It will read 0L if the circuit is dead or the resistance will be reading Mega ohms.

Hope this helps.